USB-3112 User's Guide - from Measurement Computing
Contents
1. Note 5 Pull up and pull down configuration area available using the DIO CTL terminal block pin 54 The pull down configuration requires the DIO CTL pin pin 54 to be connected to a DGND pin pin 50 53 or 55 For a pull up configuration the DIO CTL pin should be connected to the 5 V terminal pin pin 56 Synchronous DAC Load Table 7 SYNCLD I O specifications Parameter Conditions Specification Pin name SYNCLD terminal block pin 49 Power on and reset state Input Pin type Bidirectional Termination Internal 100K ohms pull down Software selectable direction Output Outputs internal D A LOAD signal Input Receives D A LOAD signal from external source Input clock rate 100 Hz max Clock pulse width Input 1 us min Output 5 us min Input leakage current 1 0 uA typ Input high voltage 4 0 V min 5 5 V absolute max Input low voltage 1 0 V max 0 5 V absolute min Output high voltage Note 6 IOH 2 5 mA 3 3 V min No load 3 8 V min Output low voltage Note 6 IOL 2 2 5 mA 1 1 V max No load 0 6 V max Note 6 SYNCLD is a Schmitt trigger input and is over current protected with a 200 Ohm series resistor Note 7 When SYNCLD is in input mode the analog outputs may either be updated immediately or when a positive edge is seen on the SYNCLD pin this is under software control However the pin must be at a low logic level in order for the DAC outputs to be updated immediately2. If an external source is pulling the pin high no update will occur 20 USB 3112 User s Guide Specifications Counter Table 8 CTR I O specifications Parameter Conditions Specification Pin name CTR Number of channels 1 Resolution 32 bits Counter type Event counter Input type TTL rising edge triggered Counter timer read writes rates Counter read System dependent 33 to 1000 reads per second software paced Counter write System dependent 33 to 1000 reads per second Schmidt trigger hysteresis 20 mV to 100 mV Input leakage current 1 0 uA typ Input frequency 1 MHz max High pulse width 500 nS min Low pulse width 500 ns min Input high voltage 4 0 V min 5 5 V absolute max Input low voltage 1 0 V max 0 5 V absolute min Memory Table 9 Memory specifications EEPROM 256 bytes EEPROM configuration Address range Access Description 0x000 Ox0FF Read write 256 bytes user data Microcontroller Table 10 Microcontroller specifications Type High performance 8 bit RISC microcontroller Program memory 16 384 words Data memory 2 048 bytes Power Table 11 Power specifications Parameter Conditions Specification Supply current USB enumeration lt 100 mA Supply current Note 8 Quiescent current 225 mA typ 5V user output voltage range Note 9 Available at te
3. Installing the USB 3112 What comes with your USB 3112 shipment The following items are shipped with the USB 3112 Hardware a USB 3112 device USB cable 2 meter length A N External power supply and cord 10 watt AC power adapter MCC part number PS 5V2AEPS USB 3112 User s Guide Installing the USB 3112 Additional documentation In addition to this hardware user s guide you should also receive the Quick Start Guide available in PDF at www mccdaq com PDFEmanuals DA Q Software Quick Start pdf This booklet supplies a brief description of the software you received with your USB 3112 and information regarding installation of that software Please read this booklet completely before installing any software or hardware Unpacking the USB 3112 As with any electronic device you should take care while handling to avoid damage from static electricity Before removing the USB 3112 from its packaging ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge If any components are missing or damaged notify Measurement Computing Corporation immediately by phone fax or e mail Phone 508 946 5100 and follow the instructions for reaching Tech Support Fax 508 946 9500 to the attention of Tech Support Email techsupport mccdaq com Installing the software Refer to the Quick Start Guide for instructions
4. they may read high or low You can configure the inputs to read a high or low value when they aren t wired Use the DIO CTL connection pin 54 to configure the digital pins for pull up inputs read high when unwired or pull down inputs read low when unwired To pull up the digital pins to 5V wire the DIO CTL terminal pin to the 5V terminal pin pin 56 To pull down the digital pins to ground 0 volts wire the DIO CTL terminal pin to a DGND terminal pin pin 50 53 or 55 Ground terminals AGND DGND Eight analog ground AGND connections provide a common ground for all analog voltage output channels Three digital ground DGND connections provide a common ground for the DIO CTR SYNCLD and 5V connections Synchronous DAC load terminal SYNCLD The synchronous DAC load connection pin 49 is a bidirectional I O signal that allows you to simultaneously update the DAC outputs on multiple devices You can use this pin for two purposes Configure as an input slave mode to receive the D A LOAD signal from an external source When the SYNCLD pin receives the trigger signal the analog outputs are updated simultaneously SYNCLD pin must be logic low in slave mode for immediate update of DAC outputs When the SYNCLD pin is in slave mode the analog outputs can be updated immediately or when a positive edge is seen on the SYNCLD pin this is under software control The SYNCLD pin must be at a low logic level for DAC outpu
5. 3112 to your system To connect the USB 3112 to your system turn your computer on and connect the USB cable to a USB port on your computer or to an external USB hub that is connected to your computer The USB cable provides communication to the USB 3112 When you connect the USB 3112 to a computer for the first time a Found New Hardware dialog opens when the operating system detects the device When the dialog closes the installation is complete After the USB 3112 is installed the USB LED should flash and then remain lit This indicates that communication is established between the USB 3112 and your computer Caution Do not disconnect any device from the USB bus while the computer is communicating with the USB 3112 or you may lose data and or your ability to communicate with the USB 3112 If the USB LED turns off If the USB LED is illuminated but then turns off the computer has lost communication with the USB 3112 To restore communication disconnect the USB cable from the computer and then reconnect it This should restore communication and the LED should turn back on Calibrating the USB 3112 The USB 3112 is shipped fully calibrated Calibration coefficients are stored in the device FLASH memory Return the device to Measurement Computing Corporation when calibration is required The normal calibration interval is once per year 11 Chapter 3 Functional Details External components The USB 3112 has th
6. Studio are either trademarks or registered trademarks of Microsoft Corporation LabVIEW is a trademark of National Instruments CompactFlash is a registered trademark of SanDisk Corporation XBee and XBee PRO are trademarks of MaxStream Inc All other trademarks are the property of their respective owners Information furnished by Measurement Computing Corporation is believed to be accurate and reliable However no responsibility is assumed by Measurement Computing Corporation neither for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent or copyrights of Measurement Computing Corporation All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form by any means electronic mechanical by photocopying recording or otherwise without the prior written permission of Measurement Computing Corporation Notice Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and or devices without prior written consent from Measurement Computing Corporation Life support devices systems are devices or systems which a are intended for surgical implantation into the body or b support or sustain life and whose failure to perform can be reasonably expected to result in injury Measurement Com
7. Temp drift C Absolute accuracy at FS mV 10 V 0 0183 1 831 0 00055 3 661 Oto 10 V 0 0183 0 915 0 00055 2 746 Table 4 Relative accuracy specifications Range Relative accuracy LSB 10 V 0to 10 V 4 0 typ 12 0 max Analog output calibration Table 5 Analog output calibration specifications Parameter Conditions Specifications Recommended warm up time 15 minutes min On board precision reference DC level 5 000 V 1 mV max Tempco 10 ppm C max Long term stability 10 ppm SQRT 1000 hrs Calibration method Voutx Rload 20 mA fixed Software calibration resistive load Calibration interval 1 year 19 USB 3112 User s Guide Specifications Digital input output Table 6 Digital I O specifications Digital logic type CMOS Number of I O 8 Configuration Independently configured for input or output Pull up pull down configuration User configurable Note 5 All pins floating default Digital I O input loading TTL default 47 K ohms pull up pull down configurations Digital I O transfer rate system paced System dependent 33 to 1000 port reads writes or single bit reads writes per second Input high voltage 2 0 V min 5 5 V absolute max Input low voltage 0 8 V max 0 5 V absolute min Output high voltage IOH 2 5 mA 3 8 V min Output low voltage IOL 2 5 mA 0 7 V max Power on and reset state Input
8. in conformity with the relevant provisions of the following standards or other documents EU EMC Directive 89 336 EEC Electromagnetic Compatibility EN 61326 1997 Amendment 1 1998 Emissions Group 1 Class A EN 55011 1990 CISPR 11 Radiated and Conducted emissions Immunity EN61326 Annex A EC 61000 4 2 1995 Electrostatic Discharge immunity Criteria C EC 61000 4 3 1995 Radiated Electromagnetic Field immunity Criteria A TEC 61000 4 4 1995 Electric Fast Transient Burst immunity Criteria A EC 61000 4 5 1995 Surge immunity Criteria A EC 61000 4 6 1996 Radio Frequency Common Mode immunity Criteria A EC 61000 4 8 1994 Power Frequency Magnetic Field immunity Criteria A JEC 61000 4 11 1994 Voltage Dip and Interrupt immunity Criteria A Declaration of Conformity based on tests conducted by Chomerics Test Services Woburn MA 01801 USA in April 2006 Test records are outlined in Chomerics Test Report EMI4498 06 We hereby declare that the equipment specified conforms to the above Directives and Standards lak Hof Carl Haapaoja Director of Quality Assurance Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton Massachusetts 02766 508 946 5100 Fax 508 946 9500 E mail info mccdag com www mccdaq com
9. on installing the software on the Measurement Computing Data Acquisition Software CD This booklet is available in PDF at www mccdaq com PDFmanuals DAQ Software Quick Start pdf Installing the hardware Be sure you are using the latest system software Before you connect the USB 3112 make sure that you are using the latest versions of the USB drivers Before installing the USB 3112 download and install the latest Microsoft Windows updates In particular when using Windows XP make sure you have XP Hotfix KB822603 installed This update is intended to address a serious error in Usbport sys when you operate a USB device You can run Windows Update or download the update from www microsoft com downloads details aspx familyid 733dd867 56a0 4956 b7fe e85b688b7f86 amp displaylang en For more information refer to the Microsoft Knowledge Base article Availability of the Windows XP SP1 USB 1 1 and 2 0 update This article is available at support microsoft com kbid 822603 Connecting the AC power adapter Power to the USB 3112 is provided with the 10 watt USB adapter PS 5V2AEPS To connect the power supply to your USB 3112 connect the USB adapter cord to the power connector on the USB 3112 device and plug the AC adapter into a power outlet The power LED on the device lights up when the USB 3112 is receiving power from the AC power adapter 10 USB 3112 User s Guide Installing the USB 3112 Connecting the USB
10. to VOUT7 are voltage output terminals see Figure 5 The voltage output range for each channel is software programmable for either bipolar or unipolar The bipolar range is 10 V and the unipolar range is 0 to 10 V The channel outputs may be updated individually or simultaneously Digital I O terminals DIOO to DIO7 You can connect up to eight digital I O lines to the screw terminals labeled DIOO to DIO7 pins 21 through 28 You can configure each digital port for either input or output When you configure the digital bits for input you can use the digital I O terminals to detect the state of any TTL level input Refer to the switch shown in Figure 6 and the schematic shown in Figure 7 When the switch is set to the 5 V USER input DIO7 reads TRUE 1 If you move the switch to DGND DIO7 reads FALSE 0 Pin 28 3 DIO7 y P DIO DGND 5V Figure 6 DIO7 detecting the state of a switch Figure 7 Schematic showing DIO7 detecting the state of a switch For more information on digital signal connections For more information on digital signal connections and digital I O techniques refer to the Guide to Signal Connections available on our web site at www mccdag com signals signals pdf 14 USB 3112 User s Guide Functional Details Digital I O control terminal DIO CTL for pull up down configuration All digital pins are floating by default When inputs are floating the state of unwired inputs are undefined
11. 0 V and the unipolar range is 0 to 10 V The outputs may be updated individually or simultaneously The USB 3112 features eight bidirectional digital I O connections You can configure the DIO lines as input or output in one 8 bit port All digital pins are floating by default A screw terminal connection is provided for pull up 5 V or pull down 0 volts configuration The 32 bit counter can count TTL pulses A bidirectional synchronization connection allows you to simultaneously update the DAC outputs on multiple devices The USB 3112 is powered by a 5 volt 2 amp AC power adapter that is shipped with the board All I O connections are made to the screw terminals located along each side of the USB 3112 Figure 1 USB 3112 USB 3112 User s Guide Introducing the USB 3112 USB 3112 block diagram USB 3112 functions are illustrated in the block diagram shown here 5 volt regulated USB power supply SYNCLD 5 o 2 Full speed 3 o USB 2 0 4 channel E Compliant SPI Quad i ea 3 Interface DIA gt 8 channels 16 bit 3 et 5 al D A High Drive 4 g Eloy O E gt DIO USB 5 8 channels 8 Microcontroller 9 DEK 3 z h 9 emm g Event Counter 1 channel 32 bit Figure 2 USB 3112 block diagram Software features For information on the features of InstaCal and the other software included with your USB 3112 refer to the Quick Start Guide that shipped with your device Chapter 2
12. 2 oneens 11 Chapter 3 FUN CON Dette resonar External components na eec e EE ERR Se ER ERR AA A eee ia pn USB connector an cinese ete ope te veo peto Pr oe aee eee pereo eaten eenn USB LED int eeb nd ed akon i ete e evi eei eee PO WEL Connetti RN pde deus Ene Power LED ntes eee tee e Ee eee e etta educates leia dado cede Screw terminal banks iodo detona indecisa ee dwarse Analog voltage output terminals VOUTO to VOUT ce ee eeeeeeneeeeeneereeeeeees Digital I O terminals DIOO to DIO7 nnn envenneeneenneenvenseenvenneenvenvenn Digital I O control terminal DIO CTL for pull up down configuration Ground terminals AGND DGND ann erneenneeenseernsersneersveesseersserssen Synchronous DAC load terminal SYNCLD eese GCounterterminal CTR cos et AE er eee Mee etie eo deter Power terminal CSV ic ette ert reet ee Ph e Reeve re leasen rh eee n deer eeu Synchronizing multiple Units ure ee UE e Gea dee Oi eaa Mechanical drawings naa it etu d RI ER a POE decent Chapter 4 SpecifiCallOHS cnr cree di O Ve trou ac rennend Venen EE rab og counter Luo eenn Vrae E EE dante 18 Analog voltage output n rn rto rd eb e perte er p i RR her halen dieet 18 Analog output calibrations ie rege epic ete e et reb P t e oa ae ld ete ds 19 Digital input output ass enen rnnt ot e re aca eU Oe te e c nana eet 20 Synchronous DAC Load tre roe erre e e erp prt eee EO E ip i bet ananas che 20 C
13. 49 of two USB 3112 units together in a master slave configuration and simultaneously update the DAC outputs of both devices Do the following 1 Connectthe SYNCLD pin of the master USB 3112 to the SYNCLD pin of the slave USB 3112 2 Configure the SYNCLD pin on the slave device for input to receive the D A LOAD signal from the master device Use InstaCal to set the direction of the SYNCLD pin 3 Configure the SYNCLD pin on the master device for output to generate an output pulse on the SYNCLD pin Set the Universal Library SIMULTANEOUS option for each device Refer to the Universal Library User s Guide for information on how to configure the USB 3112 with the Universal Library When the SYNCLD pin on the slave device receives the signal the analog output channels on each device are updated simultaneously An example of a master slave configuration is shown here Master D A LOAD signal Slave device SYNCLD pin device terminal pin 49 Configure the SYNCLD Configure the SYNCLD pin for output pin for input Figure 8 Synchronizing the update of multiple units 16 USB 3112 User s Guide Functional Details Mechanical drawings il o000000000000000000000900009 T l Cm im Figure 9 Circuit board top and housing dimensions 17 Chapter 4 Specifications Typical for 25 C unless otherwise specified Specifications in italic text are guaranteed by design Analog voltage out
14. The USB 3112 output voltage level defaults to OV whenever the output voltage range is reconfigured The USB 3112 output voltage level will also default to OV 1 Whenever the host PC is reset shut down or suspended 2 If a reset command is issued to the device 18 USB 3112 User s Guide Specifications Note 2 Note 3 Note 4 The duration of this particular output transient is highly dependent on the enumeration process of the host PC Typically the output of the USB 3112 is stable after 2 seconds The maximum differential non linearity specification applies to the entire 0 to 50 C temperature range of the USB 3112 This specification also accounts for the maximum errors due to the software calibration algorithm in Calibrated mode only and the DAC8554 digital to analog converter non linearities The USB 3112 voltage outputs should not be kept in a short circuit condition for longer than the specified limit of 100 ms For those applications that may potentially exceed the 40 mA maximum current limit or the 100 ms short circuit condition external current limiting must be used to prevent potential damage to the USB 3112 Table 2 Absolute accuracy specifications calibrated output VOUTx Rload 20 mA fixed resistive load Range Accuracy LSB 10 V 14 0 Oto 10 V 22 0 Table 3 Absolute accuracy components specifications calibrated output Range 96 of reading Offset mV
15. USB 3112 Eight channel 16 bit high drive analog voltage output Eight digital I O one 32 bit event counter Full speed USB 2 0 device User s Guide Va FA MEASUREMENT AW 449 COMPUTING USB 3112 USB based Analog Output User Guide Vaal Pa AWVN Vas MEASUREMENT COMPUTING Document Revision 4 January 2011 Copyright 2011 Measurement Computing Corporation Your new Measurement Computing product comes with a fantastic extra Management committed to your satisfaction Thank you for choosing a Measurement Computing product and congratulations You own the finest and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support It s the embodiment of our mission To provide data acquisition hardware and software that will save time and save money Simple installations minimize the time between setting up your system and actually making measurements We offer quick and simple access to outstanding live FREE technical support to help integrate MCC products into a DAQ system Limited Lifetime Warranty Most MCC products are covered by a limited lifetime warranty against defects in materials or workmanship for the life of the product to the original purchaser unless otherwise noted Any products found to be defective in material or workmanship will be repaired replaced with same or similar device or refunded at MCC s discretion For specific information please refer to
16. e following external components as shown in Figure 3 USB connector USB LED Power connector Power LED Screw terminal banks 2 Screw terminal pins 29 to 56 Power connector USB LED Power LED Screw terminal js pins 1 to 28 USB connector Figure 3 USB 3112 external components USB connector The USB connector provides communication Use the external power supply that shipped with the USB 3112 to power the device USB LED The USB LED indicates the communication status of the USB 3112 It uses up to 10 mA of current and cannot be disabled The table below defines the function of the USB LED LED Illumination LED Illumination Indication Steady green The USB 3112 is connected to a computer or external USB hub Blinks continuously Data is being transferred 12 USB 3112 User s Guide Functional Details Power connector Connect the external power adapter MCC part number PS 5V2AEPS to this connector Power LED The power LED lights up when the USB 3112 is receiving power from the AC power adapter Screw terminal banks The USB 3112 has two rows of screw terminals one row on the top edge of the housing and one row on the bottom edge Each row has 28 connections Use 16 AWG to 30 AWG wire gauge when making screw terminal connections Pin numbers are identified in Figure 4 Pin 29 Pin 56 Pin 1 Pin 28 Figure 4 USB 3112 screw terminal pin numb
17. ering Screw terminal pins 1 28 The screw terminals on the bottom edge of the USB 3112 pins 1 to 28 provide the following connections Four analog voltage output connections VOUTO VOUT2 VOUTA VOUT6 Four analog ground connections AGND Fight digital I O connections DIOO to DIO7 Screw terminal pins 29 56 The screw terminals on the top edge of the USB 3112 pins 29 to 56 provide the following connections Four analog voltage output connections VOUT1 VOUT3 VOUT5 VOUT7 Four analog ground connections AGND One SYNC terminal for external clocking and multi unit synchronization SYNCLD Three digital ground connections DGND One external event counter connection CTR One digital I O pull down resistor connection DIO CTL One voltage output power connection 5 V 13 USB 3112 User s Guide Functional Details 29 VOUT1 30 NC 31 VOUT3 32 NC 33 AGND 34 VOUT5 35 NC 36 VOUT7 37 NC 38 AGND 39 NC 40 NC 41 NC 42 NC 43 AGND 44 NC 45 NC 46 NC 47 NC 48 AGND 49 SYNCLD 50 DGND 51 NC 52 CTR 53 DGND 54 DIOCTL 55 DGND 56 5V KEN oooooooooooooooooooooooooooo Y QN CO F 10 O I 00 O0 37 Ee re ooo oc SNO NA e N st e Er arr nao a a LUNES E z 265565665 oooooooooooooooooooo99oooooOQ SZ gt ZI gt Z gt ZIZZZ2Z2I2Z2Z22ID0000000 Figure 5 USB 3112 signal pin out Analog voltage output terminals VOUTO to VOUT7 The screw terminal pins labeled VOUTO
18. orage temperature range 40 to 85 C Humidity 0 to 90 non condensing Note 12 The environmental specifications listed in Table 13 apply only to the USB 31 12 and not the AC power adapter Mechanical Table 14 Mechanical specifications Dimensions 127 mm L x 88 9 mm W x 35 56 H 22 USB 3112 User s Guide Specifications Main connector and pin out Table 15 Main connector specifications Connector type Screw terminal Wire gauge range 16 AWG to 30 AWG Pin Signal Name Pin Signal Name 1 VOUTO 29 VOUT1 2 NC 30 NC 3 VOUT2 31 VOUT3 4 NC 32 NC 5 AGND 33 AGND 6 VOUT4 34 VOUT5 7 NC 35 NC 8 VOUT6 36 VOUT7 9 NC 37 NC 10 AGND 38 AGND 11 NC 39 NC 12 NC 40 NC 13 NC 41 NC 14 NC 42 NC 15 AGND 43 AGND 16 NC 44 NC 17 NC 45 NC 18 NC 46 NC 19 NC 47 NC 20 AGND 48 AGND 21 DIOO 49 SYNCLD 22 DIO1 50 DGND 23 DIO2 51 NC 24 DIO3 52 CTR 25 DIO4 53 DGND 26 DIO5 54 DIO CTL 27 DIO6 55 DGND 28 DIO7 56 5V 23 C Declaration of Conformity Manufacturer Measurement Computing Corporation Address 10 Commerce Way Suite 1008 Norton MA 02766 USA Category Electrical equipment for measurement control and laboratory use Measurement Computing Corporation declares under sole responsibility that the product USB 3112 to which this declaration relates is
19. ounter USB 3112 User s Guide USB specifications i zaan aen aot ate eed aca dete te er e RED E A ista 22 Environmental pe 22 Mechanical A eet tome tot deo mama euim ami 22 Mari connector nd pin Out 2n o e dolende e E e e haus eee tes Hee as e PEE A abe eee 23 Declaration of Conformity en ennnenenneensnnenanenennenesnsnnnnnanenanenensennnnanenanenennennnnanenananennnneensen 24 Preface About this User s Guide What you will learn from this user s guide This user s guide describes the Measurement Computing USB 3112 data acquisition device and lists the specifications Conventions in this user s guide For more information on Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading Caution Shaded caution statements present information to help you avoid injuring yourself and others damaging your hardware or losing your data bold text Bold text is used for the names of objects on a screen such as buttons text boxes and check boxes italic text Italic text is used for the names of manuals and help topic titles and to emphasize a word or phrase Where to find more information For additional information relevant to the operation of your hardware refer to the Documents subdirectory where you installed the MCC DAQ software C Program Files Measurement Computing DAQ b
20. put Table 1 Analog voltage output specifications Parameter Conditions Specifications Digital to Analog converter DAC8554 Number of channels 8 Resolution 16 bits Output ranges Calibrated 10 V Oto 10 V Software configurable Un calibrated 10 2 V 0 04 to 10 08 V Software configurable Output Transient 10 V to 0 to 10 V or 0 to 10 V to 10 V range selection Note 1 Duration 5 uS typ Amplitude 5 V p p typ Host PC is reset powered up suspended or a reset command is issued to device Note 2 Duration 2 S typ Amplitude 2 V p p typ Initial power on Duration 50 mS typ Amplitude 5 V peak typ Differential non linearity Note 3 Calibrated 1 25 LSB typ 2 LSB to 1 LSB max Un calibrated 0 25 LSB typ 1 LSB max Output current VOUTx pins 40 mA max single channel Note 4 180mA max total load current Output short circuit protection VOUTX connected to AGND 100 mS max Note 4 Output coupling DC Power on and reset state DACs clear to zero scale 0 V 50 mV typ Output range 0 10V Output noise 0 to 10 V range 14 95 u Vrms typ 10 V range 31 67 u Vrms typ Settling time to 1 LSB accuracy 25 uS typ Slew rate 0 to10 V range 2 0 V uS typ 10 V range 4 0 V uS typ Throughput single channel 100 Hz max system dependent multi channel 100 Hz Zch max system dependent Note 1
21. puting Corporation products are not designed with the components required and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people HM USB 3112 doc Table of Contents Preface About this User s Guide anar ene enne ennnensnenennennnennenenavensmensvensnenneenneenanennneenneennneennvensvennvenn 6 What you will learn from this user s guide annen envencenveenenneeneenvenvencenvervenneenvenvenvenvenvenvenneenenne 6 Conventions 11 this user S SME auna opo eed p ap OO pO a e e Dd eames 6 Where to find more information unne annn ennn enne ense enen eneesverseerneeeneenneenneenneenseenveenvenneesnensvennvenneenneenneenneenneensn 6 Chapter 1 Introducing the USB 3112 itia nete 7 Overview USB 3112 features eire ete erret adn Er rene rede tenerae end 7 USB 3112 block dira tion 8 Sodi tad 8 Chapter 2 Installing the USB 3112 What comes with your USB 3112 shipment aen oneenvenvenc enne enenneeneenvenvencenvervenneenvenvenvenvenvensenneenennee 9 ard Ware soetra eie ettet onde eie tee e tete sien Additional documentation Unpacking the WS B 3112 ie ee o eot e e 10 Installing the software Installing the hardware Connecting the AC power adapter x aet Ade RE e e a ee RR 10 Connecting the USB 3112 to y Our SyStem ec erret Here reete e o e Edere vel Renee dere PERS HR Dee des resi 11 Calibrating the USB 31T1
22. rminal block pin 56 4 5 V min 5 25 V max 5V user output current Note 10 Available at terminal block pin 56 10 mA max AC Power Adapter Requirements Note 11 Output voltage SV 5 Output wattage 10 watts Power jack configuration Two conductor Power jack barrel diameter 6 3 mm Power jack pin diameter 2 0 mm Power jack polarity Center positive 21 USB 3112 User s Guide Specifications Note8 This is the total quiescent current requirement for the USB 3112 which includes up to 10 mA for the status LED This does not include any potential loading of the digital I O bits 5V user terminal or the VOUTx outputs Note 9 Output voltage range assumes external input power supply is within specified limits Note 10 This refers to the total amount of current that can be sourced from the 5V user terminal pin 56 for general use This specification also includes any additional contribution due to DIO loading Note 11 The USB 3112 product includes an AC power adapter MCC part number PS 5V2AEPS USB specifications Table 12 USB specifications USB device type USB 2 0 full speed USB device compatibility USB 1 1 2 0 USB cable length 3 meters max USB cable type A B cable UL type AWM 2527 or equivalent min 24 AWG VBUS GND min 28 AWG D D Environmental Table 13 Environmental specifications Operating temperature range Note 12 0 to 50 C St
23. the terms and conditions of sale Harsh Environment Program Any Measurement Computing product that is damaged due to misuse or any reason may be eligible for replacement with the same or similar device for 50 of the current list price I O boards face some harsh environments some harsher than the boards are designed to withstand Contact MCC to determine your product s eligibility for this program 30 Day Money Back Guarantee Any Measurement Computing Corporation product may be returned within 30 days of purchase for a full refund of the price paid for the product being returned If you are not satisfied or chose the wrong product by mistake you do not have to keep it These warranties are in lieu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even if Measurement Computing Corporation has been notified in advance of the possibility of such damages Trademark and Copyright Information TracerDAQ Universal Library Measurement Computing Corporation and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation Windows Microsoft and Visual
24. ts to update immediately If the external source supplying the D A LOAD signal is pulling the SYNCLD pin high no update will occur Refer to the USB 3100 Series section in the Universal Library User s Guide for information on how to update DAC outputs immediately Configure as an output master mode to send the internal D A LOAD signal to the SYNCLD pin You can use the SYNCLD pin to synchronize with a second USB 3112 and simultaneously update the DAC outputs on each device Refer to Synchronizing multiple units section on page 16 Use InstaCal to configure the SYNCLD mode as master or slave On power up and reset the SYNCLD pin is set to slave mode input Refer to the USB 3100 Series section in the Universal Library User s Guide for information on how to configure the USB 3112 with the Universal Library Counter terminal CTR The CTR connection pin 52 is the input to the 32 bit event counter The internal counter increments when the TTL levels transition from low to high The counter can count frequencies of up to 1 MHz Power terminal 5V The 5 V connection pin 56 draws power from the external power connector This terminal is a 5V output Caution The 5V terminal is an output Do not connect to an external power supply or you may damage the USB 3112 and possibly the computer 15 USB 3112 User s Guide Functional Details Synchronizing multiple units You can connect the SYNCLD terminal pin pin
25. y default or search for your device on our website at www mccdaq com Chapter 1 Introducing the USB 3112 Overview USB 3112 features This user s guide contains all of the information you need to connect the USB 3112 to your computer and to the signals you want to measure The USB 3112 is part of the Measurement Computing brand of USB based data acquisition products The USB 3112 is a USB 2 0 full speed high drive device that is supported under popular Microsoft Windows operating systems The USB 3112 is fully compatible with both USB 1 1 and USB 2 0 ports The USB 3112 provides eight channels of analog voltage output eight digital I O connections and one 32 bit event counter Each of the voltage outputs of the USB 3112 incorporates high drive current output capability The high drive current outputs allow each of the voltage outputs to sink source up to 40 mA maximum of load current Caution The USB 3112 voltage outputs should not be kept in a short circuit condition for longer than the specified 100 ms For those applications that may potentially exceed the 40 mA maximum current limit or the 100 ms short circuit condition external current limiting must be used to prevent potential damage to the USB 3112 The USB 3112 has two quad 4 channel 16 bit digital to analog converters DAC You set the voltage output range of each DAC channel independently with software for either bipolar or unipolar The bipolar range is 1
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